Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
EC

Eui Soon Chang — 1 Patent

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Seoul, KR: #25,289 of 39,741 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Eui Soon Chang has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 2004. Eui Soon Chang ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Eui Soon Chang in Seoul, KR.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6794337 Superconducting colloids, superconducting thin layers produced therefrom, and processes for producing them Jin-Ho Choy, Soon Jae Kwon 2004-09-21